linux-kernel - Re: WARNING: at kernel/resource.c:189 __release

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Message-ID: <20071201220120.15f4fd49@poseidon.drzeus.cx>
Date:	Sat, 1 Dec 2007 22:01:20 +0100
From:	Pierre Ossman <drzeus@...eus.cx>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Slaby <jirislaby@...il.com>,
	Matthew Wilcox <matthew@....cx>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	linux-usb-devel@...ts.sourceforge.net,
	linux-pm@...ts.linux-foundation.org
Subject: Re: WARNING: at kernel/resource.c:189 __release_resource

On Thu, 29 Nov 2007 16:40:37 -0700
Bjorn Helgaas <bjorn.helgaas@...com> wrote:

> 
> The corresponding PCI code in pci_device_suspend() does not do
> any generic device disable or resource release.  I don't know
> why PNP disables the device on suspend.  I glanced through the
> ACPI spec but didn't see a requirement for it.  Maybe Pierre [1]
> remembers.
> 

Afraid not. There was a reason for it, but my mind draws a blank as to what that was... I have a slight recollection of bad BIOS interaction during STR, but I'm not sure it was related to this specific patch.

Rgds
Pierre

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